ASTM A334Icyiciro cya 6ni imbaraga nyinshi, ubushyuhe buke bwa karubone ibyuma bifite karubone ntarengwa ya 0,30%, manganese ya 0.29-1.06%, imbaraga ntoya ya 415Mpa (60ksi), nimbaraga zitanga 240Mp (35ksi).
Ikoreshwa cyane cyane mubijyanye na gaze ya gazi isanzwe, ubwubatsi bwa polar, hamwe na tekinoroji ya firigo, ihuza nubushyuhe buke cyane.
ASTM A334ni ibisanzwe byerekana karubone idafite isuderi hamwe na karuboni hamwe na alloy ibyuma byifashishwa bya cryogenic.
Hariho amanota menshi kugirango uhuze ibikenewe bitandukanye.
Icyiciro cya 1, Icyiciro cya 3, Icyiciro cya 6, Icyiciro cya 7, Icyiciro cya 8, Icyiciro cya 9, Icyiciro cya 11.
Icyiciro cya 1Icyiciro cya 6 ni imiyoboro ya karubone.
ASTM A334 Umuyoboro wicyiciro cya 6 wicyuma urashobora kubyazwa umusaruro udafite kashe cyangwa gusudira.
Uburyo bwo gusudira burimo uburyo butandukanye nkagusudira amashanyarazi (ERW)nagusudira arc gusudira (SAW).
Hasi, ni inzira yo kubyaraUburebure bwa Arc Welding (LSAW).
Nkuruganda rukora ibyuma bisudira, turashobora guhaza ibyifuzo byabakiriya bacu batandukanye, dutanga uburyo butandukanye bwibicuruzwa kugirango tumenye imikorere myiza nubuziranenge kuri buri porogaramu.
Igice kimwe cyo gusudira cya LSAW tubing itezimbere cyane imbaraga rusange yigituba, bigatuma ishobora kwihanganira umuvuduko mwinshi.
Byongeye kandi, birakwiriye rwose ko hajyaho umuyoboro munini wa diameter nini n’urukuta ruzengurutse ibyuma byujuje ibyifuzo bya ASTM A334 Icyiciro cya 6 muri sisitemu nini nini yo gutanga inganda n’ingufu, nko kubaka gaze nini y’amazi meza ( LNG) ibikoresho.
Muri icyo gihe, kugenzura neza ibipimo byerekana neza imiyoboro ya diametre hamwe nubunini bwurukuta kugirango urusheho guhuza kwizerwa no kwirinda kumeneka muri sisitemu.
Ubusanzwe ushyushya ubushyuhe bumwe butarenze 1550 ° F [845 ° C] hanyuma ukonje mu kirere cyangwa mu cyumba gikonjesha cy’itanura rigenzurwa n’ikirere.
Niba ubushyuhe bukenewe, bizakenera kumvikana.
Ibigize imiti ya ASTM A334 Icyiciro cya 6 cyicyuma cyateguwe kugirango harebwe uburyo bwiza bwubukanishi ku bushyuhe buke no gukomera bihagije kuri serivisi yizewe mubihe bikabije.
| Icyiciro | C (Carbone) | Mn (Manganese) | P (Fosifore) | S (Amazi meza) | Si (Silicon) |
| Icyiciro cya 6 | max 0.30 | 0.29-1.06 | max 0.025 | max 0.025 | min 0.10 |
| Kuri buri kugabanuka kwa 0,01% karubone munsi ya 0,30%, kwiyongera kwa 0,05% manganese hejuru ya 1.06% bizemererwa kugera kuri 1.35%. | |||||
Ku cyiciro cya 1 cyangwa Icyiciro cya 6, ntabwo byemewe gutanga amanota avanze kubintu byose bitari ibyo bisabwa neza.Ariko, biremewe kongeramo ibintu bikenewe kugirango deoxidation yicyuma.
Ubushakashatsi bwingaruka kumuyoboro wicyuma cya 6 ukorerwa kuri -45 ° C [-50 ° F] nkuburyo bwo kugenzura ubukana ningaruka ziterwa nibintu mubushuhe buke cyane.
Ikizamini cyakozwe muguhitamo ingufu zikwiye zishingiye ku bunini bwurukuta rwumuyoboro wibyuma.
Kubara byibuze kuramba kuri buri 1/32 muri. [0,80 mm] kugabanuka mubugari bwurukuta.
| Icyiciro | Rockwell | Brinell |
| ASTM A334 Icyiciro cya 6 | B 90 | 190 |
Buri muyoboro ugomba gupimwa bidasubirwaho amashanyarazi cyangwa hydrostatike ukurikije A1016 / A1016M.
Keretse niba byavuzwe ukundi muburyo bwo kugura, ubwoko bwikizamini bugomba gukoreshwa bugomba guhitamo uwabikoze.
Ikizamini cya Flattening
Ikizamini cya Flare (Imiyoboro idafite uburinganire)
Ikizamini cya Flange (Welded Tubes)
Ihindure Ikizamini
1. Ibikoresho bya gazi isanzwe (LNG): Bitewe nubushyuhe bwo hasi cyane, umuyoboro wicyuma cya 6 ukoreshwa cyane mubikorwa bya LNG, mububiko no gutwara abantu.Ibi bikoresho bisaba ibikoresho bigumana imbaraga nyinshi nubukomezi bwiza kubushyuhe buke cyane.
2. Uburyo bwo gutwara peteroli na gaze: ikoreshwa mu gutwara hydrocarbone y'amazi cyangwa gaze, nka gaze ya peteroli ya peteroli (LPG) hamwe nandi mazi yo mu bushyuhe buke mubidukikije buke.
3. Ikoranabuhanga rya firigo hamwe nububiko bukonje: Ibi birareba no mubindi bice bya tekinoroji yo gukonjesha, nko gukonjesha hamwe nuburyo bwo kubika imbeho mugutunganya ibiryo nubundi buryo bwa chimique busaba gukora ubushyuhe buke.
4. Ubwubatsi bwa polar.
5. Sisitemu yo guhumeka no guhanahana ubushyuhe: Ikindi gikoreshwa cyane muri sisitemu nini yo guhumeka no guhanahana ubushyuhe, bigomba gukora neza ku bushyuhe buke kugirango sisitemu ikore neza n'umutekano.
6. Amashanyarazi na sitasiyo.
EN 10216-4: P265NL.
DIN 17173: TTSt41N: Yashizweho kubushyuhe buke buke, itanga imikorere yubushyuhe buke kandi ikoreshwa mubikoresho no mu miyoboro isaba ubushyuhe buke cyane.
JIS G3460: STPL46: Byakoreshejwe muburyo bwo gutwara imiyoboro mubushyuhe buke, bushobora guhangana ningaruka zubushyuhe buke hamwe nigitutu.
GB / T 18984: 09Mn2V: Ibi bikoresho kabuhariwe mu gukora ibyuma bitagira ibyuma kugirango bikoreshwe ahantu hafite ubushyuhe buke, hamwe nubushyuhe buke bwo hasi no guhangana.
Mugihe uhitamo ibyo bikoresho bihwanye, ni ngombwa kwemeza ko imiterere yimiti hamwe nubukanishi byujuje ibisabwa bisabwa nibisabwa.
Ibipimo bigomba kugereranwa muburyo burambuye kandi inzira yinyongera yo kugerageza no gutanga ibyemezo irashobora gusabwa kugirango hamenyekane neza imikorere yimikorere.
Kuva yashingwa muri 2014, Botop Steel yabaye isoko rya mbere mu gutanga isokoumuyoboro wa karubonemu majyaruguru y'Ubushinwa, izwiho serivisi nziza, ibicuruzwa byiza, n'ibisubizo byuzuye.Isosiyete itanga imiyoboro inyuranye y’ibyuma bya karubone n’ibicuruzwa bifitanye isano na byo, birimo icyuma, ERW, LSAW, hamwe n’icyuma cya SSAW, ndetse n’umurongo wuzuye w’ibikoresho bya flanges na flanges.
Ibicuruzwa byayo bidasanzwe birimo kandi amavuta yo mu rwego rwo hejuru hamwe na austenitis ibyuma bitagira umuyonga, bigenewe guhuza ibyifuzo byimishinga itandukanye.
